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🛡️ '''Retained risk''' is the portion of potential [[Definition:Loss | loss]] exposure that an [[Definition:Insurance carrier | insurer]], [[Definition:Reinsurer | reinsurer]], or insured entity deliberately keeps on its own balance sheet rather than transferring to another party through [[Definition:Insurance | insurance]], [[Definition:Reinsurance | reinsurance]], or alternative [[Definition:Risk transfer | risk transfer]] mechanisms. In the context of an insurance company, retained risk represents the net exposure remaining after ceding portions of a book to reinsurers — defined by the [[Definition:Retention | retention]] levels established in its [[Definition:Reinsurance program | reinsurance program]]. For policyholders, it refers to what they absorb through [[Definition:Deductible | deductibles]], [[Definition:Self-insured retention (SIR) | self-insured retentions]], or uninsured exposures.

📐 The amount of risk an insurer retains is a central strategic decision that balances profitability against volatility. Higher retentions mean the insurer keeps more [[Definition:Premium | premium]] income and avoids [[Definition:Ceding commission | ceding commissions]] or reinsurance costs, but they also expose the company to greater [[Definition:Loss volatility | loss volatility]] and require stronger [[Definition:Capital | capital]] reserves. Actuaries and [[Definition:Enterprise risk management (ERM) | ERM]] teams model various retention scenarios using tools like [[Definition:Stochastic modeling | stochastic simulations]] and [[Definition:Catastrophe model | catastrophe models]] to identify the optimal point where the cost of reinsurance equals the marginal benefit of reduced volatility. On the policyholder side, choosing a higher [[Definition:Deductible | deductible]] or [[Definition:Self-insured retention (SIR) | SIR]] lowers the [[Definition:Premium | premium]] but shifts more financial responsibility to the insured in the event of a [[Definition:Claims | claim]].

📈 Retained risk is a defining characteristic of an insurer's risk appetite and directly influences its [[Definition:Financial strength rating | financial strength rating]], [[Definition:Return on equity (ROE) | return on equity]], and competitive positioning. [[Definition:Rating agency | Rating agencies]] closely examine net retention levels relative to surplus — an insurer that retains too much relative to its capital base may face a downgrade, while one that cedes excessively may be viewed as overly dependent on [[Definition:Reinsurer | reinsurers]]. The concept also sits at the heart of emerging models in [[Definition:Insurtech | insurtech]] and [[Definition:Parametric insurance | parametric insurance]], where technology enables more precise segmentation of which risks to retain and which to transfer. Sophisticated management of retained risk — calibrated through data, models, and disciplined [[Definition:Underwriting | underwriting]] — is what separates well-run insurance operations from those vulnerable to unexpected shocks.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Retention]]
* [[Definition:Self-insured retention (SIR)]]
* [[Definition:Reinsurance program]]
* [[Definition:Risk transfer]]
* [[Definition:Net retained premium]]
* [[Definition:Enterprise risk management (ERM)]]
{{Div col end}}

Definition:Retained risk - Revision history

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